Remote controlled lift assembly

ABSTRACT

A remote controlled lift assembly includes a pair of supports is each mountable to a respective outrigger of scaffolding. A winch unit is positionable on the supports when the supports are mounted on the scaffolding and the winch unit has a cable extending downwardly therefrom. The cable is lowered or lifted when the winch is actuated. A receiver is coupled to the winch unit and the receiver is in electrical communication with the winch unit. A remote control is provided that is carried by a user and the remote control is in wireless electrical communication with the receiver. In this way the user can remotely lift and lower the cable for lifting and lowering cargo.

CROSS-REFERENCE TO RELATED APPLICATIONS

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STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

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THE NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT

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INCORPORATION-BY-REFERENCE OF MATERIAL SUBMITTED ON A COMPACT DISC OR ASA TEXT FILE VIA THE OFFICE ELECTRONIC FILING SYSTEM

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STATEMENT REGARDING PRIOR DISCLOSURES BY THE INVENTOR OR JOINT INVENTOR

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BACKGROUND OF THE INVENTION (1) Field of the Invention

The disclosure relates to lift devices and more particularly pertains toa new lift device for automatically lifting cargo on a scaffold.

(2) Description of Related Art Including Information Disclosed Under 37CFR 1.97 and 1.98

The prior art relates to lift devices and the prior art discloses amotorized scaffold platform for lifting and lowering a work surface.Additionally, the prior art discloses a novel drive unit for lifting andlowering a scaffolding platform along vertical cables. The prior artdiscloses a scaffold hoist that includes a winch and a cable and whichis mounted atop a leg of scaffolding. The prior art also discloses aportable hoist for lifting heavy objects that includes wheels forrolling on a support surface. The prior art discloses a vertical liftmember that includes slidable elements for improving safety of astanchion climbing hoist.

BRIEF SUMMARY OF THE INVENTION

An embodiment of the disclosure meets the needs presented above bygenerally comprising a pair of supports is each mountable to arespective outrigger of scaffolding. A winch unit is positionable on thesupports when the supports are mounted on the scaffolding and the winchunit has a cable extending downwardly therefrom. The cable is lowered orlifted when the winch is actuated. A receiver is coupled to the winchunit and the receiver is in electrical communication with the winchunit. A remote control is provided that is carried by a user and theremote control is in wireless electrical communication with thereceiver. In this way the user can remotely lift and lower the cable forlifting and lowering cargo.

There has thus been outlined, rather broadly, the more importantfeatures of the disclosure in order that the detailed descriptionthereof that follows may be better understood, and in order that thepresent contribution to the art may be better appreciated. There areadditional features of the disclosure that will be described hereinafterand which will form the subject matter of the claims appended hereto.

The objects of the disclosure, along with the various features ofnovelty which characterize the disclosure, are pointed out withparticularity in the claims annexed to and forming a part of thisdisclosure.

BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWING(S)

The disclosure will be better understood and objects other than thoseset forth above will become apparent when consideration is given to thefollowing detailed description thereof. Such description makes referenceto the annexed drawings wherein:

FIG. 1 is a perspective view of a remote controlled lift assemblyaccording to an embodiment of the disclosure.

FIG. 2 is a bottom phantom view of a winch unit of an embodiment of thedisclosure.

FIG. 3 is a front phantom view of an embodiment of the disclosure.

FIG. 4 is a front cut-away view of a winch unit of an embodiment of thedisclosure.

FIG. 5 is a cross sectional view taken along line 5-5 of FIG. 4 of anembodiment of the disclosure.

FIG. 6 is a front perspective in-use view of an embodiment of thedisclosure.

FIG. 7 is a perspective in-use view of an embodiment of the disclosureshowing a winch unit being suspended from block and tackle.

FIG. 8 is a perspective in-use view of an embodiment of the disclosureshowing a winch unit being suspended by a suspension loop.

FIG. 9 is a perspective in-use view of an embodiment of the disclosureshowing a winch unit being positioned within scaffolding.

DETAILED DESCRIPTION OF THE INVENTION

With reference now to the drawings, and in particular to FIGS. 1 through9 thereof, a new lift device embodying the principles and concepts of anembodiment of the disclosure and generally designated by the referencenumeral 10 will be described.

As best illustrated in FIGS. 1 through 9, the remote controlled liftassembly 10 generally comprises a pair of supports 12 and each of thesupports 12 is mountable to a respective outrigger 14 of scaffolding 16.The scaffolding 16 may be scaffolding of any conventional design that iscommonly employed at construction sites or the like. Each of thesupports 12 has a first member 18, a second member 20 oriented at aright angle with the first member 18. The first member 18 is attachableto the respective outrigger 14 having the second member 20 beingoriented to extend along a horizontal axis. Additionally, each of thesupports 12 is positionable adjacent to a top end of the scaffolding 16.

A winch unit 24 is positionable on the supports 12 when the supports 12are mounted on the scaffolding 16 such that the winch unit 24 is spacedupwardly from a support surface on which the scaffolding 16 ispositioned. The winch unit 24 has a cable 26 extending downwardlytherefrom. The cable 26 is extended outwardly from the winch unit 24when the winch unit 24 is actuated into a lowering condition.Conversely, the cable 26 is retracted into the winch unit 24 when thewinch unit 24 is actuated into a lifting condition. In this way thewinch unit 24 can lift or lower building materials, tools, equipment orany other heavy objects that are commonly lifted during the course of aconstruction project.

The winch unit 24 comprises a housing 28 that has a first end 30, asecond end 32 and an outer wall 33 extending therebetween, and thehousing 28 is elongated between the first end 30 and the second end 32.The outer wall 33 has a top side 34, a bottom side 36, a front side 38and a back side 40. The bottom side 36 has a cable aperture 42 extendinginto an interior of the housing 28 and the cable aperture 42 iscentrally positioned between the first end 30 and the second end 32. Asuspension loop 44 is coupled to the top side 34 of the outer wall 33 ofthe housing 28 and the suspension loop 44 can be attached to asuspension line for suspending the housing 28 therefrom. The suspensionloop 44 is centrally positioned between the first end 30 and the secondend 32 for balancing the housing 28 when the housing 28 is suspended.

A winch 46 is positioned within the housing 28, the winch 46 is alignedwith the cable 26 opening and the cable 26 is coupled to the winch 46.The winch 46 turns in a first direction when the winch 46 is turned onfor lifting. Additionally, the cable 26 is wrapped around the winch 46when the winch 46 turns in the first direction to lift a load attachedto the cable 26. The winch 46 turns in a second direction when the winch46 is turned on for lowering. Additionally, the cable 26 is unwrappedaround the winch 46 when the winch 46 turns in the second direction tolower the load attached to the cable 26. The winch 46 may be an electricwinch that has a lifting capacity of approximately 2000.0 pounds.

The cable 26 has a distal end 48 with respect to the winch 46 and aweight sensor 50 is coupled to the distal end 48 of the cable 26 whereto sense the weight of the load on the cable 26. The weight sensor 50 isin electrical communication with the winch 46 and the weight sensor 50sends a shut off signal to the winch 46 when the weight sensor 50 sensesa weight that exceeds a pre-determined trigger weight. In this way theweight sensor 50 inhibits the winch 46 from being overloaded by theweight of the load attached to the cable 26. The weight sensor 50 maycomprise an electronic weight sensor, a spring and a switch that isturned on when the spring is stretched to a trigger length or any othertype of weight sensor.

A hook 52 is coupled to the weight sensor 50 thereby facilitating theload to be attached to the hook 52 for lifting and lowering. A pair ofsuspensions 54 is each coupled to the bottom side 36 of the outer wall33 of the housing 28. Each of the suspensions 54 may comprise a hook orthe like and cabling can be attached between the suspensions 54. In thisway additional block and tackle can be added for increasing the weightcapacity of the winch 46.

A plurality of spot lights 56 is provided and each of the spot lights 56is coupled to the bottom side 36 of the outer wall 33 of the housing 28to emit light outwardly therefrom. Each of the spot lights 56 ispositioned adjacent to a respective one of the first end 30 and thesecond end 32 of the housing 28 and each of the spot lights 56 iselectrically coupled to the winch 46. Each of the spot lights 56 isturned on when the winch 46 is turned on to illuminate the load. Each ofthe spot lights 56 may comprise an LED or other type of electronic lightemitter.

A pair of handles 58 is each coupled to a respective one of the firstend 30 and the second end 32 wherein for gripping and carrying thehousing 28. A pair of tie downs 60 is each coupled to the outer wall 33of the housing 28. Each of the tie downs 60 is positioned adjacent to arespective one of the first end 30 and the second end 32. Each of thetie downs 60 has a strap space 62 integrated therein and a tie downstrap 64 can be extended through the strap space 62 for attaching thehousing 28 to a structure.

A strobe light 66 is coupled to the front side 38 of the outer wall 33of the housing 28 to emit light outwardly therefrom. The strobe light 66is electrically coupled to the winch 46 and the strobe light 66 isturned on when the winch 46 is turned on. In this way the strobe light66 visually alerts people to the potential danger of the load is liftedor lowered. The strobe light 66 may comprise an LED that emits red lightor any other type of electronic light emitter. A horn 68 is coupled tothe housing 28 to emit an audible alert and the horn 68 is electricallycoupled to the winch 46. The horn 68 is turned on when the winch 46 isturned on to audibly alert people to the potential danger of the load islifted or lowered. The horn 68 may be an electric horn similar to thatwhich is found on motor vehicles.

A female electrical outlet 70 is integrated into the bottom side 36 ofthe outer wall 33 of the housing 28 to have a power cord 72 pluggedtherein. The female electrical outlet 70 is electrically coupled thewinch 46 to deliver electrical current to the power cord 72. The femaleelectrical outlet 70 may be a three prong outlet or the like and thepower cord 72 may be a three prong power cord. A power supply 74 ispositioned within the housing 28, the power supply 74 is electricallycoupled to the winch 46 and the power supply 74 comprises at least onebattery 76.

A receiver 78 is coupled to the winch unit 24 and the receiver 78 is inelectrical communication with the winch unit 24. The receiver 78 iselectrically coupled to the winch 46. The receiver 78 turns on the winch46 for lifting when the receiver 78 receives a lift command. Thereceiver 78 turns on the winch 46 for lowering when the receiver 78receives a lower command. The receiver 78 may comprise a radio frequencyreceiver 78 or the like.

A remote control 80 is provided that can be carried by a user and theremote control 80 is in wireless electrical communication with thereceiver 78. The remote control 80 broadcasts the lift command to thereceiver 78 when a lift button on the remote control 80 is depressed tofacilitate the user to remotely actuate the winch unit 24 for lifting.The remote control 80 broadcasts the lower command to the receiver 78when a lower button on the remote control 80 is depressed to facilitatethe user to remotely actuate the winch unit 24 for lowering. The remotecontrol 80 includes a transmitter 82 and the transmitter 82 is inelectrical communication with the receiver 78. The transmitter 82 maycomprise a radio frequency transmitter or the like.

A lift box 84 is provided that is attachable to the cable 26 therebyfacilitating the winch unit 24 to lift or lower the lift box 84. Theload is positionable in the lift box 84 thereby facilitating the winch46 to lift or lower the load. The lift box 84 has a bottom wall 86 and aperimeter wall 88 extending upwardly therefrom, and the perimeter wall88 has a distal edge 90 with respect to the bottom wall 86. A pluralityof engagements 92 is each coupled to the distal edge 90 of the perimeterwall 88 of the box. The engagements 92 are spaced apart from each otherand are evenly distributed around the distal edge 90. A plurality ofrigging 94 is provided and the rigging 94 is coupled between each of theengagements 92 and the hook 52 on the cable 26. In this way the rigging94 evenly distributes the weight of the load in the lift box 84 withrespect to keeping the lift box 84 in a horizontal oriented duringlifting and lowering.

In use, the scaffolding 16 is assembly to accommodate the winch unit 24to be positioned at a preferred location for lifting and lowering theload. Each of the supports 12 is attached to the respective outrigger 14of the scaffolding 16 and the housing 28 is positioned on top of thesupports 12. Tie down strap 64 s can be secured to each of the tie downs60 on the housing 28 to secure the housing 28 to the scaffolding 16. Theremote control 80 is manipulated to either lift or lower the lift box84. In this way the load can be lifted without requiring the user tomanually lift the load. Thus, the time required to lift a collection ofbricks up to a rooftop, for example, is reduced as compared to carryingthe bricks.

As is most clearly shown in FIG. 7, a block and tackle can be attachedto the suspension loop 44 on the housing 28 for enhancing the loadcapacity of the winch 46. As is most clearly shown in FIG. 8, the hook52 on the cable 26 can be attached to the supports 12 therebyfacilitating the winch unit 24 to be lifted and lowered. Thus, the loadcan be secured to the suspension loop 44 on the housing 28 for liftingand lowering. As is most clearly shown in FIG. 9, the housing 28 can bepositioned within the scaffolding 16 for lifting and lowering the loadwithin the scaffolding 16.

With respect to the above description then, it is to be realized thatthe optimum dimensional relationships for the parts of an embodimentenabled by the disclosure, to include variations in size, materials,shape, form, function and manner of operation, assembly and use, aredeemed readily apparent and obvious to one skilled in the art, and allequivalent relationships to those illustrated in the drawings anddescribed in the specification are intended to be encompassed by anembodiment of the disclosure.

Therefore, the foregoing is considered as illustrative only of theprinciples of the disclosure. Further, since numerous modifications andchanges will readily occur to those skilled in the art, it is notdesired to limit the disclosure to the exact construction and operationshown and described, and accordingly, all suitable modifications andequivalents may be resorted to, falling within the scope of thedisclosure. In this patent document, the word “comprising” is used inits non-limiting sense to mean that items following the word areincluded, but items not specifically mentioned are not excluded. Areference to an element by the indefinite article “a” does not excludethe possibility that more than one of the element is present, unless thecontext clearly requires that there be only one of the elements.

I claim:
 1. A remote controlled lift assembly for lifting cargo upwardlyalong scaffolding, said assembly comprising: a pair of supports, each ofsaid supports being mountable to a respective outrigger of scaffolding;a winch unit being positionable on said supports when said supports aremounted on the scaffolding wherein said winch unit is configured to bespaced upwardly from a support surface on which the scaffolding ispositioned, said winch unit having a cable extending downwardlytherefrom, said cable being extended outwardly from said winch unit whensaid winch unit is actuated into a lowering condition, said cable beingretracted into said winch unit when said winch unit is actuated into alilting condition; a receiver being coupled to said winch unit, saidreceiver being in electrical communication with said winch unit; aremote control configured for being carried by a user, said remotecontrol being in wireless electrical communication with said receiver,said remote control broadcasting a lift command to said receiver when alift button on said remote control is depressed wherein said remotecontrol is configured to facilitate the user to remotely actuate saidwinch unit, said remote control broadcasting a lower command to saidreceiver when a lower button on said remote control is depressed whereinsaid remote control is configured to facilitate the user to remotelyactuate said winch unit; and wherein said winch unit comprises a housinghaving a first end, a second end and an outer wall extendingtherebetween, said housing being elongated between said first end andsaid second end, said outer wall having a top side, a bottom side, afront side and a back side, said bottom side having a cable apertureextending into an interior of said housing, said cable aperture beingcentrally positioned between said first end and said second end, asuspension loop being coupled to said top wall of said outer wall ofsaid housing wherein said suspension loop is configured to be attachedto a suspension line for suspending said housing therefrom, saidsuspension loop being centrally positioned between said first end andsaid second end for balancing said housing when said housing issuspended, a winch being positioned within said winch housing, saidwinch being aligned with said cable aperture, said cable being coupledto said winch, said winch turning in a first direction when said winchis turned on for lifting, said cable being wrapped around said winchwhen said winch turns in said first direction wherein said winch isconfigured to lift a load attached to said cable, said winch turning ina second direction when said winch is turned on for lowering said cablebeing unwrapped around said winch when said winch turns in said seconddirection wherein said winch is configured to lower the load attached tosaid cable, said cable having a distal end with respect to said winch, aweight sensor being coupled to said distal end of said cable whereinsaid weight sensor is configured to sense the weight of the load on saidcable, said weight sensor being in electrical communication with saidwinch, said weight sensor sending a shut off signal to said winch whensaid weight sensor senses a weight that exceeds a pre-determined triggerweight wherein said weight sensor is configured to inhibit said winchfrom being overloaded by the weight of the load attached to said cable,a plurality of spot lights, each of said spot lights being coupled tosaid bottom side of said outer wall of said housing wherein each of saidspot lights is configured to emit light outwardly therefrom, each ofsaid spot lights being positioned adjacent to a respective one of saidfirst end and said second end of said housing, each of said spot lightsbeing electrically coupled to said winch, each of said spot lights beingturned on when said winch is turned on wherein each of said spot lightsis configured to illuminate the load, a pair of handles, each of saidhandles being coupled to a respective one of said first end and saidsecond end wherein each of said handles is configured to be gripped forcarrying said housing, a strobe light being coupled to said front sideof said outer wall of said housing wherein said strobe light isconfigured to emit light outwardly therefrom, said strobe light beingelectrically coupled to said winch, said strobe light being turned onwhen said winch is turned on wherein said strobe light is configured tovisually alert people to the potential danger of the load being liftedor lowered, a horn being coupled to said housing wherein said horn isconfigured to emit an audible alert, said horn being electricallycoupled to said winch, said horn being turned on when said winch isturned on wherein said horn is configured to audibly alert people to thepotential danger of the load being lifted or lowered, a femaleelectrical outlet being integrated into said bottom side of said outerwall of said housing wherein said female electrical outlet is configuredto have a power cord plugged therein, said female electrical outletbeing electrically coupled to said winch wherein said female electricaloutlet is configured to deliver electrical current to the power cord,and a lift box being attachable to said cable thereby facilitating saidwinch unit to lift or lower said lift box, said lift box having the loadbeing positionable therein wherein said winch is configured to lift orlower the load, said lift box having a bottom wall and a perimeter wallextending upwardly therefrom, said perimeter wall having a distal edgewith respect to said bottom wall.
 2. The assembly according to claim 1,wherein each of said supports has a first member and a second memberoriented at a right angle with said first member, said first memberbeing attachable to the respective outrigger having said second memberbeing oriented to extend along a horizontal axis, each of said supportsbeing positionable adjacent to a top end of the scaffolding.
 3. Theassembly according to claim 1, wherein said winch unit includes a hookbeing coupled to said weigh sensor.
 4. The assembly according to claim1, wherein said winch unit includes a pair of tie downs, each of saidtie downs being coupled to said outer wall of said housing, each of saidtie downs being positioned adjacent to a respective one of said firstend and said second end, each of said tie downs having a tie down beingattached thereto for restraining said housing to a structure.
 5. Theassembly according to claim 1, wherein said winch unit includes a powersupply being positioned within said housing, said power supply beingelectrically coupled to said winch, said power supply comprising atleast one battery.
 6. The assembly according to claim 1, wherein saidreceiver is electrically coupled to said winch, said receiver turning onsaid winch for lifting when said receiver receives said lift command,said receiver turning on said winch for lowering when said receiverreceives said lower command.
 7. The assembly according to claim 1,wherein said winch unit includes: a plurality of engagements, each ofsaid engagements being coupled to said distal edge of said perimeterwall of said box, said engagements being spaced apart from each otherand being evenly distributed around said distal edge; and a plurality ofrigging, said rigging being coupled between each of said engagements andsaid hook on said cable wherein said rigging is configured to evenlydistribute the weight of the load in said box.
 8. A remote controlledlift assembly for lifting cargo upwardly along scaffolding, saidassembly comprising: a pair of supports, each of said supports beingmountable to a respective outrigger of scaffolding, each of saidsupports having a first member and a second member oriented at a rightangle with said first member, said first member being attachable to therespective outrigger having said second member being oriented to extendalong a horizontal axis, each of said supports being positionableadjacent to a top end of the scaffolding; a winch unit beingpositionable on said supports when said supports are mounted on thescaffolding wherein said winch unit is configured to be spaced upwardlyfrom a support surface on which the scaffolding is positioned, saidwinch unit having a cable extending downwardly therefrom, said cablebeing extended outwardly from said winch unit when said winch unit isactuated into a lowering condition, said cable being retracted into saidwinch unit when said winch unit is actuated into a lifting condition,said winch unit comprising: a housing having a first end, a second endand an outer wall extending therebetween, said housing being elongatedbetween said first end and said second end, said outer wall having a topside, a bottom side, a front side and a back side, said bottom sidehaving a cable aperture extending into an interior of said housing, saidcable aperture being centrally positioned between said first end andsaid second end; a suspension loop being coupled to said top wall ofsaid outer wall of said housing wherein said suspension loop isconfigured to be attached to a suspension line for suspending saidhousing therefrom, said suspension loop being centrally positionedbetween said first end and said second end for balancing said housingwhen said housing is suspended; a winch being positioned within saidwinch housing, said winch being aligned with said cable aperture, saidcable being coupled to said winch, said winch turning in a firstdirection when said winch is turned on for lifting, said cable beingwrapped around said winch when said winch turns in said first directionwherein said winch is configured to lift a load attached to said cable,said winch turning in a second direction when said winch is turned onfor lowering, said cable being unwrapped around said winch when saidwinch turns in said second direction wherein said winch is configured tolower the load attached to said cable, said cable having a distal endwith respect to said winch; a weight sensor being coupled to said distalend of said cable wherein said weight sensor is configured to sense theweight of the load on said cable, said weight sensor being in electricalcommunication with said winch, said weight sensor sending a shut offsignal to said winch when said weight sensor senses a weight thatexceeds a pre-determined trigger weight wherein said weight sensor isconfigured to inhibit said winch from being overloaded by the weight ofthe load attached to said cable; a hook being coupled to said weighsensor; a plurality of spot lights, each of said spot lights beingcoupled to said bottom side of said outer wall of said housing whereineach of said spot lights is configured to emit light outwardlytherefrom, each of said spot lights being positioned adjacent to arespective one of said first end and said second end of said housing,each of said spot lights being electrically coupled to said winch, eachof said spot lights being turned on when said winch is turned on whereineach of said spot lights is configured to illuminate the load; a pair ofhandles, each of said handles being coupled to a respective one of saidfirst end and said second end wherein each of said handles is configuredto be gripped for carrying said housing; a pair of tie downs, each ofsaid tie downs being coupled to said outer wall of said housing, each ofsaid tie downs being positioned adjacent to a respective one of saidfirst end and said second end, each of said tie downs having a tie downbeing attached thereto for restraining said housing to a structure; astrobe light being coupled to said front side of said outer wall of saidhousing wherein said strobe light is configured to emit light outwardlytherefrom, said strobe light being electrically coupled to said winch,said strobe light being turned on when said winch is turned on whereinsaid strobe light is configured to visually alert people to thepotential danger of the load being lifted or lowered; a horn beingcoupled to said housing wherein said horn is configured to emit anaudible alert, said horn being electrically coupled to said winch, saidhorn being turned on when said winch is turned on wherein said horn isconfigured to audibly alert people to the potential danger of the loadbeing lifted or lowered; a female electrical outlet being integratedinto said bottom side of said outer wall of said housing wherein saidfemale electrical outlet is configured to have a power cord pluggedtherein, said female electrical outlet being electrically coupled saidwinch wherein said female electrical outlet is configured to deliverelectrical current to the power cord; and a power supply beingpositioned within said housing, said power supply being electricallycoupled to said winch, said power supply comprising at least onebattery; a receiver being coupled to said winch unit, said receiverbeing in electrical communication with said winch unit, said receiverbeing electrically coupled to said winch, said receiver turning on saidwinch for lifting when said receiver receives a lift command, saidreceiver turning on said winch for lowering when said receiver receivesa lower command; a remote control configured for being carried by auser, said remote control being in wireless electrical communicationwith said receiver, said remote control broadcasting said lift commandto said receiver when a lilt button on said remote control is depressedwherein said remote control is configured to facilitate the user toremotely actuate said winch unit, said remote control broadcasting saidlower command to said receiver when a lower button on said remotecontrol is depressed wherein said remote control is configured tofacilitate the user to remotely actuate said winch unit, said remotecontrol including a transmitter, said transmitter being in electricalcommunication with said receiver; a lift box being attachable to saidcable thereby facilitating said winch unit to lift or lower said liftbox, said lift box having the load being positionable therein whereinsaid winch is configured to lift or lower the load, said lift box havinga bottom wall and a perimeter wall extending upwardly therefrom, saidperimeter wall having a distal edge with respect to said bottom wall; aplurality of engagements, each of said engagements being coupled to saiddistal edge of said perimeter wall of said box, said engagements beingspaced apart from each other and being evenly distributed around saiddistal edge; and a plurality of rigging, said rigging being coupledbetween each of said engagements and said hook on said cable whereinsaid rigging is configured to evenly distribute the weight of the loadin said box.